CN210045293U

CN210045293U - Adjustable prevents falling test-tube rack for chemistry experiments

Info

Publication number: CN210045293U
Application number: CN201920753122.6U
Authority: CN
Inventors: 王海涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-24
Filing date: 2019-05-24
Publication date: 2020-02-11
Anticipated expiration: 2029-05-24

Abstract

The utility model discloses an adjustable prevents falling test-tube rack for chemistry experiments, including base and torsional spring, the top of base is fixed with the upper portion dead lever, and the top rigidity of upper portion dead lever has the rubber pad to the bottom of upper portion dead lever is connected with the lower part dead lever, the outside of upper portion dead lever is connected with placing the board through the torsional spring, and places the inside of board and run through the perforation to the both sides position of bottom all is provided with the spout about the perforation, the inside of spout is connected with the push pedal through reset spring, and the top of push pedal is connected with fixed fixture block. This adjustable for chemistry experiments prevents falling the removal work that carries on over-and-under type that can be fine between test-tube rack upper portion dead lever and the lower part dead lever, and the effect of adjusting is carried out to the distance that sets up between placing the board on the dead lever of upper portion to the convenient lifting work that goes up and down through between upper portion dead lever and the lower part dead lever, alright carry out the effect of placing according to the length of test tube to the test tube in fine reaching.

Description

Adjustable prevents falling test-tube rack for chemistry experiments

Technical Field

The utility model relates to a chemistry experiment correlation technique field specifically is a chemistry is adjustable for experiments and is prevented falling test-tube rack.

Background

The test tube rack for the chemical experiment is a placing device for stably placing test tubes in the chemical experiment process, so that the effect of conveniently placing and taking the test tubes is achieved, and the test tube rack in the existing market has the following problems in the using process;

1. the height of the conventional test tube rack is too fixed, so that the adjustment work cannot be well carried out, the whole test tube rack can only well place test tubes of one specification, and the occupied space of the whole test tube rack is also very fixed, so that the placement work cannot be well carried out;

2. whole test-tube rack does not have the anticollision and prevents falling the function, often appears striking and can cause very big influence to the work of placing of inside test tube under the condition of falling down at whole test-tube rack, consequently, we just provide a convenient test-tube rack of solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an adjustable prevents falling test-tube rack for chemistry experiments to solve the work of adjusting that highly can not be fine of the test-tube rack on the existing market that above-mentioned background art provided, and can cause the problem of damage to the test tube when the test-tube rack receives the condition that the striking was fallen down.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an adjustable prevents falling test-tube rack for chemistry experiments, includes base and torsional spring, the top of base is fixed with the upper portion dead lever, and the top rigidity of upper portion dead lever has the rubber pad to the bottom of upper portion dead lever is connected with the lower part dead lever, the outside of upper portion dead lever through the torsional spring with place the board and be connected, and place the inside of board and run through the perforation to the both sides position of bottom all is provided with the spout about the perforation, the inside of spout is connected with the push pedal through reset spring, and the top of push pedal is connected with fixture block.

Preferably, the upper fixing rod and the lower fixing rod are of an integral structure, and the bottom of the upper fixing rod and the upper side of the lower fixing rod are mutually clamped.

Preferably, the inside top of upper portion dead lever symmetry is provided with 2 groups of second stoppers, and 2 groups of second stoppers and symmetry set up each other block between 2 groups of first stoppers in lower part dead lever bottom.

Preferably, 2 groups of push plates are arranged on the upper side and the lower side of the through hole, 2 push plates are arranged in each group, the top ends of the push plates are fixed with arc-shaped fixing clamping blocks, and the horizontal length between the push plates in the same group is smaller than the diameter of the through hole.

Preferably, the height of the push plate is less than one third of the height of the perforation, and the positions of the perforation on the upper and lower 2 placing plates are all corresponding to each other.

Compared with the prior art, the beneficial effects of the utility model are that: the adjustable anti-falling test tube rack for the chemical experiment;

1. the lifting type test tube rack has the advantages that lifting type moving work can be well carried out between the upper fixing rod and the lower fixing rod, the effect of adjusting the distance between the placing plates arranged on the upper fixing rod can be conveniently achieved through the lifting work between the upper fixing rod and the lower fixing rod, the effect of placing test tubes according to the lengths of the test tubes can be well achieved through adjusting the positions of the placing plates, the occupied space of the whole test tube rack is conveniently reduced, and the effect of conveniently placing the test tubes is achieved;

2. whole test-tube rack is in the in-process of placing, and the position in the centre of fixed fixture block is placed to the test tube for there is not any contact between test tube and the whole test tube, guarantees that whole test-tube rack can not appear the phenomenon of damaging under the condition that receives the striking and fall down and take place.

Drawings

FIG. 1 is a schematic view of the main sectional structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the connection structure between the placement plate and the upper and lower fixing rods of the present invention;

fig. 4 is the utility model discloses first stopper and second stopper are overlooked.

In the figure: 1. a base; 2. an upper fixing rod; 3. a rubber pad; 4. a lower fixing rod; 5. placing the plate; 6. perforating; 7. pushing the plate; 8. a chute; 9. a return spring; 10. fixing the fixture block; 11. a torsion spring; 12. a first stopper; 13. and a second limiting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides an adjustable prevents falling test-tube rack for chemistry experiments, the on-line screen storage device comprises a base 1, upper portion dead lever 2, rubber pad 3, lower part dead lever 4, place board 5, perforation 6, push pedal 7, spout 8, reset spring 9, fixed fixture block 10, torsional spring 11, first stopper 12 and second stopper 13, base 1's top is fixed with upper portion dead lever 2, and the top rigidity of upper portion dead lever 2 has rubber pad 3, and the bottom of upper portion dead lever 2 is connected with lower part dead lever 4, the outside of upper portion dead lever 2 is connected with placing board 5 through torsional spring 11, and the inside of placing board 5 runs through perforation 6, and the both sides position of bottom all is provided with spout 8 about perforation 6, the inside of spout 8 is connected with push pedal 7 through reset spring 9, and the top of push pedal 7 is connected with fixed fixture block 10.

Structure as an organic whole between upper portion dead lever 2 and the lower part dead lever 4, and the mutual block in top of the bottom of upper portion dead lever 2 and lower part dead lever 4, the inside top symmetry of upper portion dead lever 2 is provided with 2 second stoppers 13 of group, and 2 second stoppers 13 of group and the mutual block between the first stopper 12 of 2 groups of symmetry setting in the bottom of lower part dead lever 4, conveniently make mutual block between upper portion dead lever 2 and the lower part dead lever 4, reach the effect that conveniently carries out the altitude mixture control to whole test-tube rack.

Punch 6's upper and lower both sides all are provided with 2 push pedal 7 of group, and its every group is provided with 2, and the top of push pedal 7 all is fixed with and is curved fixed fixture block 10, horizontal length between 7 with the push pedal of group is less than the diameter of punching 6, push pedal 7 highly is less than the third of punching 6 height, and

punch

6 and 2 all correspond each other in the position of placing on board 5 from top to bottom, conveniently make the test tube place between 7 middle fixed fixture block 10 of push pedal can not and punch 6 between there be any connection, make push pedal 7 hardly receive the power of striking, guarantee that whole to the damage degree of test tube less under the condition that falls down and receive the striking at the test-tube rack.

The working principle is as follows: when the adjustable anti-falling test tube rack for the chemical experiment is used, firstly, the whole test tube rack is fixedly placed above a test bed through a rubber sheet at the bottom under the action of a bottom base 1, and then the height of the test tube rack can be adjusted according to the length of a test tube to be placed; as shown in fig. 1 and fig. 3-4, during the adjustment process, a worker needs to hold the rubber pad 3 on the upper fixing rod 2, rotate the upper fixing rod 2, so that the upper fixing rod 2 drives the lower fixing rod 4 at the bottom thereof to rotate, so that the first limiting block 12 outside the lower fixing rod 4 is separated from the second limiting block 13 inside the next upper fixing rod 2, and then the upper fixing rod 2 can be made to drive the lower fixing rod 4 to perform the lifting operation, and after the upper fixing rod is lifted to a proper position, the held upper fixing rod 2 is rotated in the reverse direction, so that the first limiting block 12 outside the lower fixing rod 4 is engaged with the second limiting block 13 inside the lower fixing rod 4 below the lower fixing rod, so as to achieve the distance adjustment operation between the adjacent upper fixing rods 2, the position of the placing plate 5 on the upper fixing rod 2 is adjusted, so that the effect of adjusting the height of the whole supporting frame is well achieved;

after the regulation is accomplished, as shown in fig. 1-2, in the process of placing the test tube, the staff only need insert the bottom of test tube inside adjacent fixed fixture block 10, make fixed fixture block 10 accomplish the block to the test tube and place the work, because fixed fixture block 10 all has the setting in the upper and lower position of placing board 5, guarantee to carry out stable the placing to the test tube, push pedal 7 outside fixed fixture block 10 stretches out and draws back under reset spring 9's effect and can be fine fixes the test tube according to the diameter size of test tube, and reset spring 9's setting also guarantees to carry out certain shock attenuation work to push pedal 7 when push pedal 7 receives the striking, the content of not making detailed description in this specification belongs to the known prior art of the professional skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a chemistry is adjustable for experiments prevents falling test-tube rack, includes base (1) and torsional spring (11), its characterized in that: the top of base (1) is fixed with upper portion dead lever (2), and the top rigidity of upper portion dead lever (2) has rubber pad (3) to the bottom of upper portion dead lever (2) is connected with lower part dead lever (4), the outside of upper portion dead lever (2) is connected with placing board (5) through torsional spring (11), and places the inside of board (5) and run through perforation (6), and the both sides position of bottom all is provided with spout (8) about perforation (6), the inside of spout (8) is connected with push pedal (7) through reset spring (9), and the top of push pedal (7) is connected with fixed fixture block (10).

2. The adjustable anti-falling test tube rack for chemical experiments according to claim 1, characterized in that: the upper fixing rod (2) and the lower fixing rod (4) are of an integrated structure, and the bottom of the upper fixing rod (2) is clamped with the upper portion of the lower fixing rod (4) in a mutual clamping mode.

3. The adjustable anti-falling test tube rack for chemical experiments according to claim 1, characterized in that: the inside top symmetry of upper portion dead lever (2) is provided with 2 groups of second stopper (13), and 2 groups of second stopper (13) and symmetry set up each other block between 2 groups of first stopper (12) in lower part dead lever (4) bottom.

4. The adjustable anti-falling test tube rack for chemical experiments according to claim 1, characterized in that: the upper and lower both sides of perforation (6) all are provided with 2 push pedal (7) of group, and its every group is provided with 2 to the top of push pedal (7) all is fixed with and is curved fixed fixture block (10), and the horizontal length between push pedal (7) of the same group is less than the diameter of perforation (6).

5. The adjustable anti-falling test tube rack for chemical experiments according to claim 1, characterized in that: the height of the push plate (7) is less than one third of the height of the through hole (6), and the positions of the through hole (6) on the upper and lower 2 placing plates (5) are all corresponding to each other.